ff As far as research but...
You are spot-on on your assessment as to the reasoning of the wrist size. Each is only as tall as is allowed by the components used and the right one is considerably narrower than tall.
I don't see generous lock panels, esp. the gun on the left. They are in keeping with the style. For "generous" lock panels see percussion gus of later periods, i.e. Hawken.
The reasoning on generous lock panels on most pre-carves is to allow for variations in lock and barrel size. Better too much wood than not enough...or you can always take more wood off but you can't put it back once it's gone! :thumbsup:
Back on topic: I agree there is no substitute for hands-on examination of originals....as you discovered in your work, copying copies results in copying others mistakes.
I am blessed to live where I do in Central Pennsylvania, and have access to numerous orginals through collectors, shows, museums, etc. There may be more orginal guns within a 200 mile radius of me than there is in any other area of the country.
And I understand not everybody does. There comes a time though when the excuse "I don't have access to orginals" doesn't fly anymore....we all have access to planes, trains and automobiles. You just have to have the means and desire to use them. And if you can't, there is nothing wrong with admitting it and rely on those who do for advise....that's where sites like these are so great.
Great thread you started here :hatsoff:
I'm "enjoy"ing it, J.D.